Students solve a problem involving surface area of cylinders. They find the surface area and the amount of tin needed to make the cylindrical parts of ten long open pipes.

Before the Activity

See the attached PDF file for detailed instructions for this activity

Print pages 78 - 86 from the attached PDF file for your class

Review the four steps of problem solving with students

During the Activity

Distribute the pages to the class.

Follow the activity procedures:

Read the problem and understand the dimensions of the ten longest pipes in the concert organ

Cut a cardboard or paper towel cylinder along its height to form a rectangle

Relate the surface area of the cylinder to the area of a rectangle

Find the scale of the drawing that shows the length and the width of the concert organ pipes

Find the height, diameter, and circumference of the ten longest pipes

Calculate the surface area and the square footage of tin needed to make the cylindrical part of the pipes

Create a chart with the details of the height, diameter, circumference, and surface area of the pipes

Write an explanation about the solution

Finding surface area

Solve problems involving calculation of surface area of cubes and open cylinders

After the Activity

Students examine the various solutions presented.

Review student results

As a class, discuss questions that appeared to be more challenging